What
Claude Code keeps a record of what each model can do. That record now also notes:
- whether the model supports thinking (reasoning before it answers)
- whether it refuses requests that turn thinking off
- whether it limits effort when thinking is turned off
- whether it accepts a temperature setting, which controls how varied its answers are
Why
In practice, this information may appear in model details or debugging output.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
It is not clear what uses this record or whether any user sees it.